The Seat Altea / XL 2.0 FSI 150hp (2004 - 2009) produces 150bhp and 200Nm in standard form. Our Stage 1 ECU tuning file raises output to 160bhp and 215Nm, a gain of 10bhp and 15Nm, with no hardware modifications required. The file is delivered through the ByteFLASH portal and is ready to write to the vehicle.